Wrapping and sealing machine



May 26, 1925.

1539,400 C. W. NEUSBAUM WRAPPI NG AND SEALING MACHINE 2 Sheets-Sheet '1v Filed March 27. 1922 v INVENTOR.

2. Q F L P x &

May 26, 1925. 1,539,400

C. W. NEUSBAUM WRAPPING AND SEALING MACHINE FiledMarch 27. 1922 2Sheets-Sheet 2- INVENTOR.

a/IIS BY ATTORNEY- Patented May 26, 1925.

UNI ED STATES 1,539,400. PATENT 0FFICE.

CHARLES W. NEUSBAUM, OF ROCIFIES'IER, NEW. YORK, ASSIGNOR T0 BEEOHNUTPACK- ING COMPANY, OF CANAJ'QHAR-IE, NEW YORK, A CORPORATION OF NEWYORK.

wmrrme AND snamne MAcmnE.

Application flle d March 27 1922. Serial No. 547,157.

To all whom it may concern:

Be it known that I, CHARLES W.. Nuns- BAUM, of Rochester, in thecountyof Monroe and State of New York, have invented" certain new and usefulIm rovements in Wrapping and Sealing Machines; and I do, hereby declarethe following tobe a full,

clear, and, exact description of the same,

reference being had to the accompanying drawings, forming a part of thisspecifica-,

for wrapping and sealing packages. These are often covered with awrapping of paper or foil or botli coated or impregnated with paraifinand to complete the wrapping and -sealing the flaps of the wrapper mustbe folded down and heated to fuse the paraflin.

My invention has for its object the provi sion of a very simple, buteffective machine that will rapidly perform these operations.

and deliver the package tightly sealed. The improvements are directed inpart towaro the provision of means that will insure the adherence of theunder flap at an. end of the package to the body of the latter and theadherence of. the outer flap to the inner flap. To these and other endsthe invention consists in certain improvements and combinations ofparts, all as will be hereinafter more fully described, the novelfeatures being pointed out in the claims at the end of thespecification.

In the drawings 2 Figure 1 isa top plan view of a wrapping and sealingmachine constructed in accordance. with and illustrating one embodimentof my invention; 7

Figure 2 is a side view thereof;

Figure 3 is an enlarged fragmentary side view of the front end of thetable;

Figure 4 is a vertical central section through the same portion of thetable;

Figure 5 is a detail section on the line 55 of Figure 3;

Figure 6 is a detail section on the line 66 of Fi re 4;

Figure is a 7-7 of Figure 3;

Figure 8 is a 8-8 of Figure 3; Figure 9 is a perspective view of thepackage as it is presented to the machine;

detail section on the line detail section on the line Figure 10 is asimilar view of the ackage after the; under flap has been fol ed;

I Flgure 1 1 is a perspective view of the package completely folded andsealed, and

F1g'ure'12 is a collective enlarged detail perspective view of thesealing plate supp'ortmg bracket.

slmllar reference numerals throughout the several views indicate thesame parts.

The present invention contemplates the provislon of a machine for onlypartially wrapping but completely sealing a package to WhlOh the wrapperhas been preliminarily applied by hand in the manner shown in Figure 9where A represents the body of the package with four sides completelycovered and the ends only partially covered by the folding in of the twoshort flaps B leaving the longer upper and lower flaps O and D stillextended in which shape an operator can conveniently and quickly preparethe package which is then placed on the machine and completed. In thepresent embodiment of the invention I provide a table top 1 constitutinga bed preferably surfaced with metal at 2 and of the form shown in thecross sectional view with a channel 3 down the center thereof. At theends of the tableare brackets 4 providing bearings for sprockets 5 whichsupport an endless chain 6 having conveyor fingers 7 thereori atsuitably spaced intervals. chain travels in the direction of the arrowand the upper reach thereof occupies/the channel 3 in the bed.

At the front end 'of the machine (which is at the right in the figures)is a rectangular package receiving pocket 8 through which the conveyortravels, which pocket is open on its rear side toallow the package toslide out on the conveyor while a low wall or bead 9 defines the othersides. The pocket is preferably formed in two parts consisting of plates10 adjustably mounted by. screws 11 on the bed to accommodate packagesof different length, and it is rectangular in form,th e present machinebeing ada ted for sealmg a rectangular package.

ext beyond the pocket are a plurality of vertically disposed platessuccessively arranged in lines on'each side of the conveyor andconstituting a runway which the latter traverses. .These plates haverigidly attached to them brackets 12 that have a slidin: bearing on thetop of the table or bed The " to the bed by screws 17, the springs'14acting between the bracket to urge the bracket 12 and its plate inwardlyin each instance. The uide pins are capped by thin screws I the top nuts36,'the bridge pieces being of the form or win nuts 18 hearing. againstthe outer sides 0 the brackets 16 to limit this inward movementadjustably and define the width of the runway through which the packageis to pass. Preferably the brackets 16 are undercut as shown at 19 inFigure 12 and the brackets 12 are 'forked in a complementary manner asshown at 20 to cooperate therewith and be further guided and steadied.The first two sets of brackets at the front or right end of the machineare not so formed in the present instance inasmuch as their guide pinsmust be offset and are carried byv upstanding outer extensions orflanges 12.

Assuming the progression to be'from the pocket 8 down the runway alongthe, course of the conveyor chain 6, the first plate is a heated foldingand sealing plate 21 having an upwardly inclined and laterally turnedadvance lip 22, it being understood that in the following. descriptionthe elements referred to are duplicated on the two sides of the runway.This plate 21 isheated by a suitable electrical hot point 23,thelterminals of which are indicated at 24 and the lead wires at 25. Thenext plate 26 is also a heated plate presenting a plane vcrticalsurfaceon the interior of the run-,

way. It too is provided with a hotpoint 23 and with terminals 24 havinv'lead wires 25. An otherwise unsupported and lateral- 1y yieldingextension of this plate 26 extends forwardly at 27 above the plate 23and is provided with a downwardly inclined and laterally flared lip 28at the rear extremity of which is a' small flared lip 29 that is verysteeply inclined rearwardly and best shown in Figure 3. Beyond the plate26 and constituting the far end of the runway is a similar verticalplate-3O which is however unheated.

To hold the moving packagesdown against the bottom of the runway Iprovide therein a air of long overhanging land longitudina ly extendingshoe 31 in the present form of rods having upturned forward ends 32.These are resiliently supported to yield upwardly but press sufiicientyupon the packages to which end they are provided with fixed verticalposts 33 surrounded by coil springs 34-and extending through and guidedby bridge pieces 35 on side of which they are capped by shown in Figure6 and secured to the table as indicated at 37 in Figure 1.

The machine operates as follows:

. Packages A in the condition illustratedin I Figure 9 are successivelylaced bythe operator' in the pocket- 8 which they ,fit rather closely.The rounded head 9 of the pocket as a result of this causes the lowerflap D- to fold upwardly as shown in Figure 3.

; plates 21, the inclined lips 22 of whichcomplete. the folding of theflap D if this has not already been done. The flat heated surface ofthese plates then press the flap D flat against the end face of thepackage.

and seal it there by fusing or melting the wax with which the parts areimpregnated or coated as shown in Fi re 10. In the meantime the upperflap has in each instance. been guided up the incline 22 and. enteredbetween the plates 21 and 27. The lip 28 on the latter as the packageprogresses folds the upper flap (l downwardly upon the lower flap whichmovement is completed by the lip 29 and the two superposed flaps thenpass on to the hot plate 26 .in the condition shown in Figure .11, andthis hot plate which is high enough to engage both flaps and cover theentire end of the package completes the melting of the parafiin andseals which cool and set the parafiin and complete the treatment, itbeing understood that all of these yielding plates contribute thefunction of flattening and ironing out the end of the'package so that itis square and smooth. The conveyor finally carries the ackage .frombetween the cold plates 30 into a suitable chute 38 from which it isdelivered as. desired.

Itiis obviousfrom the construction shown thatithe machine can beadjusted and fitted to packages of different sizes within a certainrange.

The function of myimproved machine wherein it flattens, heats and sealsthe lower flap andfthen flattens, beats and seals the 'upper'fi'ap andboth flaps together. is imway at a uniform rate, of a fixe packagereceiving pocket at one end of the runway adapted to fold upwardly thelower end flap of a partially wrap ed package when placed therein, meansat t e side of the runway forfolding down the other flap as the thereonand a conveyor traversing the runway at a uniform rate, of a fixedpackage for heating the folded flaps to seal them' upon the package.

2. In a wrapping and sealing machine, the combination with a table, arunway receiving pocket at one end of the runway adapted to foldupwardly the lower end flap of a partially wrapped package when placedtherein, means at the side of the runway for pressing said flap inwardlyrelatively 'elevated means for subsequently folding the upper flap downupon the lower flap and means for successively heating the folded flaps.

3. In a wra ping machine, the combination with a ta 1e, a runway thereonand a conveyortraversing the runway at a uniform rate, of heated meansat the side of the runway for engaging the outer faceof the lower flapof a partially wrapped package to simultaneously heat and presstheackage, and;

flap againstthe body of the relatively elevated and overlying meansatthe side of the runway for later heatin and folding the upper flap downupon the ower flap.

4. ,In a wrapping machine, the combination with a table, a runwaythereon, and a fi conveyor traversing the runway at a uni form rate, ofheated means at the side of the runway for engaging the outer face ofthe lower flap of a partially wrapped package,--

to heat and press said flap against the body of the package, similarlyarranged heated means for later folding the upper flap down upon thelower flap and heated means further down the runway for pressing andsealing both flaps.

5. In a wra ping machine, the combination with a table, a runwaythereon, and a conveyor traversing the runway, of a laterally flared andupwardly inclined heated plate at the side of the runway for engagingthe outer face of the lower flap of a partially wrapped package to heatand press said flap against the packa e, and a laterally flared anddownwardly inc ined heated plate for later folding the upper flapthereofdown upon the lower fla to heat and seal it thereon.

6. In a wra ping machine, the combination with a ta 1e, a runwaythereon, and a conveyor traversing the runway, of a laterally flared andupwardly inclined heated plate at the side of the runway for engagingthe outer face of thelower flap of a partially wrapped package to heatand press said flap against the package, a laterally flared anddownwardly inclined heated plate for subsequently folding the upper flapthereof down upon the lower flap, and heated means further-"down therunway for thereafter sealing both flaps.

7 In a wrap ing and sealing machine, the combination with a table, arunway and a conveyor traversing the latter, of a plate adapted tocooperate with a package on the conveyor and having a laterallyextending guide pin thereon, a bracket on the table through which theguide pin extends, a spring acting between the said bracket and plateand a bracket on the plate slidable on the table and guided on saidfirstmentioned bracket.

8. In a wrapping and sealing machine, I

the combination with a table having a runway and a continuousconveyor'traversing the runway, of heated means at the side of therunway for pressing and heating the ap of a partially wrapped packa ecarried by the conveyor against the ho y of the package and additionalmeans .upon the table for subsequently engaging the outer face ofanother flap to fold, heat and press it .upon the first mentioned flap.

. 9. In a wrapping and sealing machine, the, combination with a'tablehaving a runway and a continuous conveyor ,traversing the runway andhaving upstanding members for advancing a partially wrapped packagethereon, folding and heating means adjacent the conveyor for heatin setof flaps on the pac ages vagainst the bodies thereof, and additionalheating and folding means adapted to subsequently heat and fold oppositesets of flaps upon the packages against the bodies thereof, each of saidfolding and'heating operations being and folding one.

performed during the continuous advancement of the packages.

CHARLES W. NEUSBAUM.

